as用法小结 1．作介词，表示“作为； 当作”。如： As a party member, I must be strict with myself． He works in the school as a teacher of math． 2．作连词，引导方式状语从句，意为“像；按照”。 如： You must do everything as I asked you to． 3．作连词，引导时间状语从句。意为“当……的时候”。 如： She sings as she walks． He came just as I reached the door． 4．作连词，引导原因状语从句。如： You must hurry up as there is...
